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Oval|Natural|IGI

1.21ct K SI1 Oval Natural Diamond

VG • K/SI1 • IGI 823631655

Shape and cutting style on the report: Oval brilliant

Certificate IGI 823631655

Diamond specifications and retailer prices

From $2,147 SGD
As of November 1, 2026
Save $3,414 SGD (61%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,561 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural oval diamond

This 1.21ct natural oval sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 823631655. Listed at 15 retailers as of November 1, 2026, with prices from $2,147 to $5,561, a $3,414 spread on the same certified stone. NZ Jewellers lists it at $5,561. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.4°
Pavilion angle36.5°
OriginNatural
Grading LabIGI
CertificateIGI 823631655
Dimensions8.50 × 5.95 × 3.64 mm
L/W Ratio1.43
Girdle conditionFaceted
Top View
8.50 mm5.95 mm1.21 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 823631655
Side View
Table 59.0%Crown 31.4°Girdle: STK-THKPavilion 36.5°Culet: NoneDepth 61.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $5,561 SGD|Low: $1,774 SGD|High: $5,922 SGD|Avg: $2,844 SGD|-6.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 8$1,774 SGD
Retailer 7$2,147 SGD
Retailer 6$2,216 SGD
Retailer 5$2,409 SGD
Retailer 14$2,432 SGD
Retailer 4$2,493 SGD
Retailer 13$2,516 SGD
Retailer 15$2,521 SGD
Retailer 2$2,604 SGD
Retailer 16$2,663 SGD
Retailer 3$2,781 SGD
Retailer 10$2,950 SGD
Retailer 11$3,277 SGD
Retailer 9$3,562 SGD
Retailer 12$4,692 SGD
NZ Jewellers$5,561 SGD

30 data points across 16 retailers

15 retailers$2,147 SGD to $5,561 SGD

B+
Cheapest Retailer
-
$2,147 SGD
B+
Retailer 2
-
$2,216 SGD
View
B+
Retailer 3
-
$2,409 SGD
View
Retailer 4
-
$2,432 SGD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$2,493 SGD
View
B+
Retailer 6
-
$2,516 SGD
View
B+
Retailer 7
-
$2,521 SGD
View
B+
Retailer 8
-
$2,604 SGD
View
B+
Retailer 9
-
$2,663 SGD
View
B+
Retailer 10
-
$2,781 SGD
View
B
Retailer 11
-
$2,950 SGD
View
B
Retailer 12
-
$3,277 SGD
View
B
Retailer 13
-
$3,562 SGD
View
C
Retailer 14
-
$4,692 SGD
View
Most Expensive
C
NZ Jewellers
516db6b8-8eac-4ab3-ba15-a0d0fc2de4e0 · Nov 5
$5,561 SGD
$4,339 USD
View
14 more retailers have this diamond
Prices start from $2,147 SGDSave up to $3,414 SGD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
1.21ct Oval
$2,147 SGD